Results 1 to 7 of 7
  1. #1
    Senior Tech 100+ Posts Laserbeam's Avatar
    Join Date
    Aug 2011
    Location
    Freiburg, Germany
    Posts
    152
    Rep Power
    27

    bizhub pro 951 shows sometimes C22-22, toner concetration is too low



    Hello to all,

    a bizhub pro 951 shows sometimes error code C22-22. The toner concentration is too low, that's why the prints are too bright.
    Unfortunately I have noch training on this model and therefore no experience.
    My colleague, who looks after this model, is sick for two weeks. I have to back him up.
    The helpdesk Konicaminolta Europe could also not give useful support. I downloaded the Field Service Handbook, the error code indicates a problem with the toner pump Motor (M28) rotation abnormality.
    Has anyone of you ever had this problem and can give me a tip how I could proceed??


  2. #2
    Master Of The Obvious 10,000+ Posts
    bizhub pro 951 shows sometimes C22-22, toner concetration is too low

    blackcat4866's Avatar
    Join Date
    Jul 2007
    Location
    Lapeer, Michigan
    Posts
    22,442
    Rep Power
    462

    Re: bizhub pro 951 shows sometimes C22-22, toner concetration is too low

    It sounds to me like you've got a toner pump failure or a tube blockage. Search "M28" in your manual to see the location illustration, #1 in the illustration. =^..^=

    Toner Pump.jpg
    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.
    5) You are the person onsite. Only you can make observations.

    blackcat: Master Of The Obvious =^..^=

  3. #3
    RTFM!! 5,000+ Posts allan's Avatar
    Join Date
    Apr 2010
    Location
    Centurion
    Posts
    5,387
    Rep Power
    152

    Re: bizhub pro 951 shows sometimes C22-22, toner concetration is too low

    Found that the augers(mylars) in the front above the dev tank can wear out as well. At least the toner pump and hopper is easy to get to.
    There is a I/O mode to dump the toner from the hopper if you need to see if it flows.
    Whatever

  4. #4
    Senior Tech 250+ Posts
    bizhub pro 951 shows sometimes C22-22, toner concetration is too low

    wjurls's Avatar
    Join Date
    Feb 2017
    Location
    Riverside, CA
    Posts
    400
    Rep Power
    29

    Re: bizhub pro 951 shows sometimes C22-22, toner concetration is too low

    C-2222 is an M28 (Toner Pump) failure. Replace the toner pump assembly. Get the right pump. The air pump and toner pump look the same but are not interchangeable. If the motor has failed there is a high likelyhood that the tubes are also now blocked. I would disconnect both ends of each tube and vacuum them out while massaging the hoses until they are clear.

  5. #5
    Senior Tech 100+ Posts Laserbeam's Avatar
    Join Date
    Aug 2011
    Location
    Freiburg, Germany
    Posts
    152
    Rep Power
    27

    Re: bizhub pro 951 shows sometimes C22-22, toner concetration is too low

    First, I want to thank everyone who answered me!

    For a test I exchanged M28 with M29. After a half day, now error C22-26 was displayed. Now, it was clear to me, that M28 is the defective component.
    Then, I renewed both motors, M28 and M29 and made 1000 test prints.
    Now I hope, that this problem is solved!

  6. #6
    Master Of The Obvious 10,000+ Posts
    bizhub pro 951 shows sometimes C22-22, toner concetration is too low

    blackcat4866's Avatar
    Join Date
    Jul 2007
    Location
    Lapeer, Michigan
    Posts
    22,442
    Rep Power
    462

    Re: bizhub pro 951 shows sometimes C22-22, toner concetration is too low

    Congratulations on your success. =^..^=
    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.
    5) You are the person onsite. Only you can make observations.

    blackcat: Master Of The Obvious =^..^=

  7. #7
    Senior Tech 100+ Posts Laserbeam's Avatar
    Join Date
    Aug 2011
    Location
    Freiburg, Germany
    Posts
    152
    Rep Power
    27

    Re: bizhub pro 951 shows sometimes C22-22, toner concetration is too low

    Now, several days have passed and the machine is still running without a error code C22-22.
    Thus, the cause of the error was definitly M28.

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Get the Android App
click or scan for the Copytechnet Mobile App

-= -= -= -= -=


IDrive Remote Backup

Lunarpages Internet Solutions

Advertise on Copytechnet

Your Link Here